Answer:
Number of moles = 0.05 mol
Explanation:
Given data:
Mass of Pb = 10.5 g
Number of moles of Pb = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of Pb is 207.2 g/mol.
Now we will put the values in formula.
Number of moles = 10.5 g/207.2 g/mol
Number of moles = 0.05 mol
Are produced along with a large quantitu of heat
The compound responsible for the characteristic smell of garlic is allicin, that is having molecular formula C₆H₁₀OS₂.
Molar mass of C₆H₁₀OS₂=162.26 g mol⁻¹.
number of moles of C₆H₁₀OS₂=1 mol
So mass of C₆H₁₀OS₂ can be calculated as:
Given mass of the C₆H₁₀OS₂= 162 g